Abstract
Experimental measurements were carried out on the ignition response of solid propellants to radiative and to conductive heat transfer. The propellants were composed of ammonium perchlorate and different organic binders. The experimental results were interpreted in terms of a model including exothermic chemical reaction in the condensed phase of the propellant as the trigger for ignition. The heat release rates in the surface-coupled reactions were measured independently. A comparison of the ignition data demonstrated different reponse of the propellants to the two modes of ignition associated with the temperature/time history of the material.
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